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1 Are Online Degrees Substitutes for Traditional Degree Programs? Evidence from a Correspondence Study Conor Lennon April 6, 2015 Preliminary and incomplete, please do not cite. Abstract This paper reports the findings of a correspondence study designed to study the impact of online degrees on labor market outcomes. The experimental variation is not between selective and non-selective schools but in the medium of instruction within major U.S. universities who have both online and traditional degree programs. In the preferred specification, callback rates for individuals who have a traditional degree were on average 16.05% after controlling for covariates. In contrast, callback rates were only 4.46% for online degree holders. These findings suggest labor market outcomes for online degree holders will be significantly worse than traditional degree holders, all else equal. This research is important for understanding the future of college education. It suggests the move to online only degrees is less predictable than suggested by the research focused on learning outcomes in online settings. JEL Codes: I26, I23, I28, J23, O33, M51 University of Pittsburgh; 1

2 1 Introduction Allen and Seaman (2014) find that, in the Fall of 2012, 33.5% of all post-secondary students in the U.S. were taking at least one class online. In 2002, this figure was just 9.6%. Such striking growth begs the question: what is higher education going to look like in 20 years time? Will all students be taking at least some classes online? Will students still attend any scheduled, face-to-face classes as they do now? The answer to these questions critically depends on whether or not online classes are preferable to students. Curiously, the literature seems to be stuck on measuring how the technological changes in higher education are affecting student learning outcomes. Bowen et al. (2014), Figlio et al. (2013), Ary and Brune (2011), Bennett et al. (2007) and Hernandez-Julian and Peters (2012) are just some of the recent examples. Each considers how student learning is affected by the move to various types of technology-enhanced instruction and/or homework assignments. The work finds that learning (measured in a variety of ways) is much the same regardless of the medium of instruction. These studies suggest online education can provide comparable learning at arguably a lower cost (see Bowen et al.). It is tempting to therefore conclude that the move towards a landscape with exclusively online college degrees is both inevitable and unavoidable. What is missing from these studies is a consideration of the individual choices that will determine how third-level education is delivered. Learning outcomes are of crucial importance to university administrators and scholars of education and pedagogy. Conscientious students may also be pleased to hear that learning outcomes are not affected by taking classes online. However, many may be at least mildly concerned about how taking classes online affects their outcomes in the labor market. This paper is for them. To try to answer the question of how students outcomes are affected by pursuing a online degree program, this paper presents the findings of a resume audit or what is more commonly referred to as a correspondence study. A correspondence study, where fictional resumes are submitted for real jobs, is ideal for testing how employers view applicants online education. In a typical correspondence study, resumes which randomly vary a single piece of information are sent to employers and callbacks for interview are tracked. Despite the effort these studies 2

3 require, the correspondence study method is popular as it tends to provide convincing evidence on how labor markets work and what determines differences in individuals outcomes. Typical examples include Bertrand and Mullainathan (2004) who vary applicants names to indicate race/ethnicity, Neumark (1996) who examines the effect of gender, Kroft et al. (2013) tackle the effect of longer spells of unemployment, Pager (2003) examines how having a criminal record effects callbacks, and Lahey (2008) considers the role of age. There are many more. The correspondence study set up allows researchers to determine causal relationships between individual characteristics and a single labor market outcome: how many interviews the individual receives. While callbacks are not a perfect measure of labor market success, the assumption underlying these studies is that applicants with more interviews will face shorter spells of unemployment and higher wages. The enduring popularity of these types of papers stems from the fact that the researcher can truly randomize the characteristic of interest, rendering it orthogonal to other observed worker characteristics. In contrast, labor market survey data is tainted by selection, measured with error, struggles to account for the effects of joint labor supply decisions, and may not report important characteristics of interest. Using a correspondence study to examine the impact of online education on callback rates avoids those problems. Of particular importance is the fact that labor market surveys do not ask about the medium of instruction for surveyed individuals. Even if they did, the decision to pursue online education is highly endogenous and would render causal identification impossible. Creating fictional resumes and then randomly assigning some to report online education provides clean identification of the effect on callbacks for interview. The experimental set up, described in greater detail in section 3, gathers a bank of resumes from online job search websites, anonymizes them by changing dates, names, contact information, resume format and style, the applicant s address, cover letter, and previous work names and locations. Each resume is assigned a unique cover letter, a realistic but ultimately fictional address, along with their own address and a contact phone number. The resumes are then randomly assigned to either convey that the degree was obtained via a specific University s online wing or from a traditional University. 3

4 Once the bank of resumes is created, they are used to apply to many real jobs across a number of major U.S. cities. After the resumes are sent requests (calls or s) for interview are tracked. 1 The experimental variation is not designed to compare selective traditional universities to for-profit schools like the University of Phoenix or DeVry. Instead the focus is on the effect of having an online degree from a well-known school that is completed online. Many large schools have a significant online presence offering dozens of completely online degrees. These include Arizona State, Ohio State, Penn State, and Northeastern University. 2 While reporting that having an online degree may seem contrived and a potential source of bias, a 2010 survey by the Society of Human Resource Managers found that only 17% of Human Resource Professionals had never seen an applicant clearly indicate an online degree. 3 In the five years since the survey, the number of people completing online classes and degrees has risen considerably: the National Center for Education Statistics reports that the per cent taking exclusively online programs rose from 3.7% in to 12.5% in To date, the author has completed a pilot phase of almost 400 job applications. The data collected represents less than 20% of the intended total. The applications were completed using 15 unique resumes which were randomly assigned to reflect online or traditional face-to-face mediums of education. On average, just over 25 applications were completed for each resume. There is variation in the total number of applications sent for each individual. The number of applications is essentially a function of the time since college graduation and is a reflection of the design of the study. As all of the resumes had to potentially represent someone who has a degree earned wholly online, the resumes represent individuals who have limited experience in their field. This lack of experience means there are sometimes not enough advertised openings that meet the study s selection criteria. The study s method is explained in detail in section 3. The variation in the number of jobs per resume was unavoidable in the short time-frame of the study s pilot phase. To ensure enough jobs met the criteria, the 1 Note that if a request for interview is received by the researcher the employer is contacted immediately to thank them and politely decline the request. 2 For example, Penn State Univeristy offers 24 completely online bachelor s degree programs that students can complete from anywhere in the world. 3 See 4 See and https://nces.ed.gov/fastfacts/display.asp?id=80 for more details. 4

5 key characteristic that would need to be changed is work experience. However, it would make no sense to create a resume which lists a degree earned online in 1995, or even In addition, all jobs had to require at least but no more than a bachelor s degree. These restrictions make finding suitable openings extremely timeconsuming. In time, as more jobs become available underrepresented resumes will not be an issue. This study s restrictions are in contrast to the breadth of options for applications and resumes Bertrand and Mullainathan and others have. Interested in the effect of black sounding names on callbacks, Bertrand and Mullainathan apply to 1,300 unique jobs. They send four different resumes to each of these for a total of almost 5,000 observations. The jobs they apply to are typically retail, clerical, sales management, or administrative positions. These jobs rarely require a degree and Bertrand and Mullainathan are not limited to sending resumes which represent younger applicants with a bachelor s degree but with little experience in their field. In fact, Bertrand and Mullainathan ensure that many of their applicants are over-qualified, thus generating enough callbacks to obtain statistical power. Despite the limited data, a statistically significant negative effect on callbacks is observed. While traditional degree holders are called back on average 16.05% of the time (after controlling for individual characteristics), online degree holders are called back on average only 4.46% of the time. In other words, applicants who listed traditional degrees were more than three times as likely to be called for interview. For context, the magnitude of this difference is approximately twice the size of the largest effects seen in callback rates by race, gender, or age in other correspondence studies. Section 2 reviews the literature on the relative merits of online education along with the benefits and drawbacks of using correspondence studies to understand the labor market. It also relates this work to the literature on school reputation effects. This paper is in some ways an examination of the within-school reputation differences created by having brand-name universities offering in-person and online degrees. Section 3 describes the correspondence study procedure. Section 4 provides summary data and checks on the experimental randomization. Section 5 provides the main results, considers their robustness, and explains how the 5 It would also not be realistic to compare the labor market outcomes of recent graduates with online degrees to recent and experience graduates from 10 or 20 years ago. 5

6 remainder of this paper will be completed. Section 6 provides concluding remarks. 2 Literature Lack (2013) provides an exhaustive literature review of the available research on learning outcomes in online education through the end of The review details large and small scale studies examining how students in accounting (Rich and Dereshiwsky,2011), management (Daymount and Blau, 2008), economics (Bennett et al., 2007), engineering (Enriquez, 2010), sociology (Driscoll et al., 2012) and more fare in online settings. The conclusions that can be drawn from these studies are complicated by differences in research method. In addition, many of the studies lack rigor or random experimental variation. They are also affected by subject attrition, treatment and control group cross-contamination, small sample sizes, different populations of interest, along with each study having a unique institutional setting and time-frame. What the review highlights is that there is no concrete evidence that students, controlling for observable characteristics, learn less when the medium of instruction is altered. Since Lack s review a number of newer studies with larger samples sizes and true experimental variation have been published. One of these is Figlio et al. s examination of the effects of watching online rather than attending introductory economics lectures at a large selective research institution in the United States. Unlike the majority of studies in Lack s review, the authors find some mild support for the hypothesis that learning outcomes are worse in online settings. In the study, students were randomly assigned to taking introductory microeconomics online versus in-person. The authors observe that regardless of sex or race, average test scores were higher for those who were assigned to the face-to-face instruction. However, the effects were modest and not always statistically different from zero. Figlio et al. s work is not without limitations. In particular, their results rely on the comparison between just 215 students assigned to online lectures and 97 assigned to traditional classes. In addition, the online instruction they compare to is extremely primitive. The live lecture is recorded and the treated students watch it online. Many would argue this set up is not the relevant comparison. Students watching a recording of the live lecture with no other changes is perhaps not what 6

7 people mean when they refer to online classes. Bowen et al., in a larger-scale study, improve upon Figlio et al. s work by allowing for the online instruction to be augmented by a new interactive learning platform. They perform their experiment at six large universities, randomly assigning undergraduates into traditional and hybrid statistics classes. The hybrid classes met once per week. Students accessed sophisticated machine-guided instruction instead of a second weekly class meeting. Bowen et al. find that students in the hybrid format are not harmed by this mode of instruction in terms of pass rates, final exam scores, and performance on a standardized assessment of statistical literacy. While the research on learning outcomes in single classes suggests that it may be a valid alternative to traditional in-person instruction, no study considers how a purely online degree program compares to a traditional degree. Indeed, if learning outcomes are comparable in a single semester introductory class, that doesn t necessarily mean that an entire degree program can be effectively delivered online. To validly examine the outcomes from entirely online programs versus traditional degrees, experimental variation at the program level would be required. Of course, randomly assigning students into an entire degree program would be problematic. First, volunteer subjects would likely be quite a unique and small group. Secondly, students who were randomly assigned into online degrees may take other steps to mitigate its effects. This is aside from the fact that such a design, given the significance of the intervention it entails, would be unlikely to obtain approval from an Institutional Review Board. What is unusual is that none of these authors discuss how labor market outcomes may be affected by the move towards online coursework. To be fair, in the context of the early studies described by Lack and the more rigorous work of Figlio et al. and Bowen et al., labor market outcomes would be impossible to convincingly relate to a change in the mode of instruction of a single 3-credit college class. At the same time, if the conclusion drawn from these studies is that college degrees could be delivered mostly via technology-enhanced instruction in the future, it seems reasonable to wonder how students who pursue online degrees will be treated in the labor market. Rechlin and Kraiger (2012) appear to be the only authors who have considered this issue. Their study experimentally examines the attitudes of employed 7

8 Industrial-Organization (I-O) Psychologists towards applicants who have completed their degree online who do and do not have internship experience. Their goal was to inform the educational investment decisions of fellow I-O Psychologists. The survey finds that applicants with online degrees are viewed less favorably than are applicants with traditional degrees. Rechlin and Kraiger s method, however, is open to criticism. Firstly, they present estimates from just 23 survey respondents in a specialized profession. These respondents viewed just a onesentence description of each hypothetical individual and their education. Respondents viewed a total of eight sentences, where each sentence varied the level of education (M.A. vs Ph.D.), its delivery (online versus traditional), or whether or not the individual had internship experience. The one sentence descriptor for an applicant with an online education was typically this applicant received his/her degree in I-O psychology from an online program and did not complete an internship during graduate school. This was compared to this applicant received his/her degree in I-O psychology from a traditional terminal degree program and did not complete an internship during graduate school. 6 Given these descriptions, the individual respondent is left to make an inference not just on the medium of education but also the institution itself. That is, if the respondent considers applicants with online degrees likely to have graduated from less-selective and lower-ranked schools, then it is unclear if the survey respondent is reacting to the medium of instruction or the inferred institutional prestige. Moreover, as all respondents viewed all eight potential descriptors and were asked how likely they were to offer the hypothetical applicant a position, we can be concerned that respondents figured out the purpose of the survey and that demand effects could be driving the results. 7 The lack of discussion and rigorous research on the impact of online education on labor market outcomes motivates this paper. The fact that information on the medium of instruction is not recorded by labor market surveys means that a correspondence study is likely the only way to causally relate the attitudes of real employers towards potential employees to degrees that are earned online. Correspondence studies are a reliable solution when crucial information available to em- 6 Note that these sentences are paraphrased. 7 That is, if respondents weren t being implicitly asked to compare online and traditional programs for research purposes, they may have reacted differently. 8

9 ployers is not available to or cannot be controlled for by researchers. Bertrand and Mullainathan provide the ideal example of the value and purpose of such studies. The authors were interested in the perennial question of how race affects labor market outcomes. One particular channel they are interested in is how employers respond to names which indicate the applicant s race. The assumption being that employers screen resumes using indicators for race which then causes wage and employment gaps to persist. Their paper s title Are Emily and Greg More Employable than Lakisha and Jamal? provides a clear illustration of their approach. Crucially, labor market survey data cannot shed any light on this question as respondents names are not reported. Bertrand and Mullainathan send almost 5,000 fictional resumes for real jobs and find that white sounding names received 50 percent more callbacks for interview, holding all else equal. An even larger-scale correspondence study involving 12,000 applications by Kroft et al. (2013) examines the role of unemployment duration in call backs for interview. They find that fictional applicants who report being unemployed for eight months have 45% fewer callbacks compared to those who were unemployed for just a single month. While labor market survey data could, in theory, be used to examine this question, researchers would have to find extraordinarily creative ways to deal with issues of selection. A naive approach would regress the probability of returning to employment in some time period on the duration of unemployment and observable characteristics. Such an approach would not provide causal estimates mainly because while applicants with longer and shorter spells of unemployment may appear similar to researchers, they likely look quite different to potential employers. Kroft et al. s approach provides tight control and allows causal relationships to be accurately determined. This paper uses a correspondence study to obtain the benefits of both Bertrand and Mullainathan s and Kroft et al. s studies. Labor market survey data does not provide the required detail on the medium of instruction and even if it did, the choice to pursue an online degree is likely endogenous and difficult to control for. Lastly, while not directly discussing the benefits of college reputation, the paper could be seen as a contribution to that literature. Dale and Krueger (2014) provide a detailed analysis of the literature in that area. Dale and Krueger also update the analysis of an earlier paper and find that reputation, proxied by selectivity, positively affects labor market outcomes in naive regressions. However, 9

10 after controlling for selection into selective colleges, the effects fall dramatically, consistent with the existing literature on the topic. Research on this topic is based on differences between schools, whereas this paper can be viewed as examining the within-school variation in reputation created by offering online degree programs. 2.1 Limits of Correspondence Studies Correspondence studies are an excellent way to uncover the attitudes of employers towards specific employee characteristics. However, a number of caveats should be considered. Firstly, callbacks for interviews do not pay bills, and it is not definitively clear from these studies that fewer callbacks actually translates to lower wages and higher unemployment. Instead, the information transmitted to employers via the resume may actually improve matching, reducing wasteful and unnecessary interviews that would not result in a job offer. In addition, the revelation of some less favored characteristic perhaps allows an applicant to gain access to an interview they would not have otherwise earned that ultimately leads to a good job offer. It is not unreasonable to suggest that some employers, due to their own personal experiences and tastes are seeking black, female, older, or homosexual workers, or that some employers might take pity (for lack of a better word) on those with longer spells of unemployment as they themselves faced a similar spell of unemployment. Secondly, given employers review resumes so quickly, the experimental variation may not be as strong as it seems in the study set up. If employers fail to notice the experimental variation it would limit differences in call back rates between applicants. Thirdly, applying for jobs posted in newspapers and online is only one way to secure employment. Social networks and connections, internships, and personal recommendations may compensate for or exacerbate the effects seen in correspondence studies. However, it is not clear that an individual who fares poorly in a correspondence study couldn t improve their potential job opportunities via alternative means. Lastly, correspondence studies are generally designed to study the impact of some immutable characteristic (at least temporarily). While they often come close, 10

11 they rarely actually study what it is they intend to. Take Bertrand and Mullainathan s paper as an example. Their paper claims to study the effect of having a Blacksounding name compared to an identical resume with a White-sounding name. Instead the paper studies the effect of having a Black-sounding name, reporting it without alteration (Jamal Jones could easily present himself on his resume as Jay or J. Jones) and having a resume that does not truly reflect changes that an employer may expect to see with that alteration. If resumes from otherwise similar whites and blacks are systematically different in the population, then an employer receiving a resume that is not like other Black resumes means that those differences are a part of the experimental variation. In that case, the effect reported in the paper is the combined effect of having a Black-sounding name but a resume that doesn t seem like other resumes from Black people. An example may clarify: suppose that Black people know their resumes are often discarded based on their name, their neighborhood of residence, or listed education (perhaps they went to a traditionally Black high school or college) and that a typical Black applicant takes action to counteract that by working harder on their cover letter, improving their resume s content, clarity, and format, oversells or inflates their experience and skills, perhaps obtains a PO Box in a different zip code, or takes some other action intended to counteract the effect of the pre-existing bias against them. Suppose also that employers know that Black people do this. Then, even if names were ignored, a Black worker with similar listed experience and education may receive fewer callbacks than a similar white worker as the employer does not believe the resume is as accurate or truthful as a resume from a White person. Essentially, the same worker on paper is treated differently not because of their race but because the employer interprets resumes differently based on prior experience with other applicants. Adding to this concern, Bertrand and Mullainathan find that White applicants experience a much higher return to increased resume quality. This suggests employers could be skeptical of the accuracy of Black resumes. Kroft et al. s paper is subject to a similar critique. The authors are actually reporting not just the effect of unemployment duration but the the combined effect of being unemployed and being foolhardy enough to not have a good (even if somewhat contrived or completely fabricated) explanation for the spell of unem- 11

12 ployment. Indeed, it is not possible to rule out if the findings of Kroft et al. are only the effect of telling someone that you have been unemployed for a long time. Employers may be much more receptive to identical resumes that have a brief explanation of the reason for the gap in employment. While being little more than cheap talk, addressing the issue shows that the worker is aware that such gaps raise red flags with employers. Kroft et al. report that of the resumes they found online 75% of the resumes for seemingly unemployed workers listed the month and date when the worker last worked. Of these, Kroft et al. report that 95% do not explain why they have not worked since the listed date. They appear to take this as evidence that resumes they submit listing an unexplained period of unemployment will not seem out of the ordinary. That is quite a leap. In particular, it is not clear from the experimental description how the authors determined if the worker was actually unemployed, had left the labor force, or was now employed and had simply failed to remove or update their resume recently. The authors also do not know if the publicly available resume on the online job board is really the same one they use when applying for jobs. Additionally, the authors do not have access to the cover letters these workers used when applying. Applicants may have fully explained the reason for the period of unemployment in those cover letters. Unfortunately, the paper you are reading is subject to the same and to some extent unavoidable criticism. The estimated effects reported later in the paper should be accurately seen as the impact on callbacks for interview from having an online degree and telling the employer. However, the consequences of this distinction are less concerning compared to Kroft et al. s paper. This is because individuals can fabricate a reason for their spell of unemployment in their application and at interview that may satisfy an employer s concerns. In contrast, an entire online four-year college degree is not so easily side-stepped. Even if it is not mentioned in the resume, the issue will likely come up during an interview. 8 What this means is that while the effects of unemployment duration on callbacks and eventual employment could be eliminated with a simple one sentence explanation, the effect 8 Consider an applicant who lists work experience coincident with their college degree, perhaps in another state. Alternatively, the fact a degree was completed online likely will arise when the candidate is asked to answer campus or location-specific questions. 12

13 of online degrees on labor market success is less avoidable. Alternatively, mimicking the concerns with Bertrand and Mullainathan s approach, employers may be used to applicants with online degrees taking steps to compensate for their perceived deficiency via improvements in other areas. While the resumes may appear equivalent to the researcher, employers may have priors that vary for these kinds of candidates. This potential concern is considered in section 5. These caveats, while relevant, do not completely invalidate the correspondence study method nor the causal relationships uncovered. Instead, they should be viewed as qualifications, adding a disclaimer that delineates what it is that is being explained and how it might be interpreted differently under alternative circumstances. 3 Experimental Procedure The procedure to generate resumes does not vary considerably across correspondence studies. For authenticity, typically a bank of resumes is created from real resumes the researchers find online. These are anonymized so that the original person can no longer be identified. The resumes are then sent to real jobs advertised online or in newspapers that the resume is qualified for. Critically, before the resumes are sent, they are randomly assigned one of n possible variations in a characteristic of interest. The researcher then tracks callbacks for interview. Because the randomization is completely orthogonal, by construction, to the resume s other reported characteristics, differences in callbacks between resumes can be interpreted as a causal relationship. The entire process is detailed in the rest of this section. As a preliminary, the author had to decide to focus on a small number of potential careers/jobs. Other resume studies tend to focus only on clerical, retail, and administrative roles to ensure they can apply to many job openings with multiple resumes. This study is focused on the difference in callbacks for those who have online versus traditional bachelor s degree programs. As a result, clerical and retail jobs are not realistic choices. Instead, the author focused on five jobs suitable for recently graduated degree holders in the business, engineering, and medical professions. This was purely for convenience as there are lots of jobs available in these fields. The usual disclaimer that the findings may not generalize to other 13

14 situations and professions applies. 3.1 Resume Generation Having decided to focus on jobs in Business, Engineering, and Medicine, step one was to search a major job hunting website for resumes of recent graduates of degree programs in business administration, marketing, accounting, nursing, along with software, mechanical, or manufacturing engineering. First, 16 resumes representing males who are recent graduates (obtained their BA/BS in 2012 or later) were selected: four from each of the areas of interest. All the resumes had to reflect someone who was currently employed in a job that closely matched their educational background. That is, a Registered Nurse with a nursing degree had to be working as a nurse, and a software engineer had to be currently working in software development or some other information technology related position. Then, 16 female resumes were selected under the same criteria. The resumes varied in almost every way one can imagine. The individuals lived in a variety of locations, had different work experience, attended different colleges throughout the US, had various degree titles even within the same field, many listed internships or part-time employment in college, and some used objective statements and listed headline keywords while others did not. The reasons the resumes are limited to currently employed (and therefore having at least some experience) individuals is to allow a sufficient number of applications to be completed. Openings suitable for recent graduates with no experience exist but they are rare whereas those requiring one year of experience are relatively plentiful. Once the set of 32 resumes were created, they were anonymized by altering specifics such as names, state of residence, dates and places of employment, college attended, graduation dates, listed GPAs, and other characteristics. All of these changes carefully preserved the overall quality of the resume. The perceived gender, the exact title of the degree held, the reported current job title, and overall years of experience reported on the resume was not altered. The author was careful to only report that a student attended a college or university where the degree obtained was also offered in a completely online format, open to anyone in the United States and often beyond. This meant that when the resumes were random- 14

15 ized they would still reflect an actual real-world option. More high-profile schools than one might first imagine offer these completely online degree programs. As just one example, Penn State University offers 24 degree programs that can be completed online from anywhere in the world. Interestingly, their FAQ page emphasizes that the transcript will not be any different to the transcript of those who completed their degree on-campus. The names assigned to individuals were used to create appropriate addresses (generally: first name, middle initial, last name at the internet domain, or a slight variation if that was not available). 9 These addresses were subsequently used to create virtual phone numbers with associated voic services. The outgoing voic message was left as the computerized greeting as is relatively common today. The message an employer heard was the same regardless of resume received and only differed in the individual s phone number. It said the person was not available and asked the caller to leave a message after the tone. Lastly, after this process was complete, the details of each resume (name, location, years of experience, gender, US News College Rank, listed GPA) were input into a spreadsheet. A simple random number between zero and one was assigned to each resume. The resumes were sorted by this number in increasing order. The first 16 in ascending order were assigned to have earned their education online. The remaining resumes were not altered to reflect an online education. The effectiveness of this randomization is discussed in section 4. The fact that a college degree had been obtained online was conveyed to potential employers by just one word following the name of the university or college the individual graduated from. On a resume this would look like [Name of University or College] - Online. That is the only difference potential employers would see on the resume. As mentioned earlier, while this may seem a little contrived, in 2010 just 17% of human resource professionals reported never seeing someone state their degree was earned online. 9 As the paper is not focused on racial gaps all of the names would be traditionally associated with Caucasian males and females in the US. 15

16 3.2 Cover Letter Generation Applications for positions almost always request a cover letter. For each resume, the author created a cover letter which varied in content but not organization or intent. All cover letters contained exactly four paragraphs. The first expressed interest in the advertised position. The second explained the candidate s current role, responsibilities, length of tenure, and expressed a desire to utilize and improve their skills in a new position. The third paragraph explained why the candidate would be a good fit for the position. This paragraph was not tailored in any way. Instead, it reminded the reader of the candidate s education along with their excellent technical, analytical, communication, and soft skills as relevant to the field. 10 The final paragraph thanked the employer for their consideration, reiterated the candidate s interest in the position, and expressed a desire to discuss the candidate s suitability for the position at interview. As each of these letters followed the same structure but varied specifics to match the details of the resume, their effect cannot be separated from a resume-level fixed effect. 3.3 Responding to Jobs The author dealt with each resume in a systematic order. Using the random numbers generated by the computer to assign online and traditional degree status to each resume, the author used each resume in the order provided by the ranking. A coin toss decided that the first resume used would be a traditional resume and the author would switch between each resume in turn. The author took the current job title listed for that resume (the real job title of the original person the resume was based upon) and searched for jobs with exactly the same job title advertised in the previous two business days. This timeframe was used in order to ensure resumes were not submitted long after the firm had received many suitable applicants. The fictitious resume and associated cover letter was then used to apply to the jobs the search returned. Jobs for which the particular candidate was not minimally qualified were ignored. In addition, to avoid bias, only jobs which asked for information explicitly available in the existing cover letter and resume were selected. This resulted in 10 For example, all nurse cover letters suggested the candidate was kind, caring, considerate, etc. However, software engineers were adept technically and analytically. 16

17 many abandoned applications as many job application systems require much more than a resume and cover letter to be submitted. Unfortunately, it is rarely clear what will be asked when beginning a job application. Applications often appear to request just a resume and cover letter be uploaded (or the information to be pasted into a firm-specific format) but upon clicking submit bring the applicant to another page of questions which often include personality tests and short essays specific to the firm, location, industry, or background of the potential applicant. To avoid the potential for bias from such essays and tests, these applications were abandoned. In all, around 40% of the job applications the author began had to be abandoned for this reason. Lastly, no more than 50 jobs were applied to for any one resume as part of the pilot phase. More will be completed in the future. There were rarely enough advertised jobs to meet the fifty-job pilot phase ceiling. This is because jobs had to be advertised within two business days, the information the employer requested had to be fully contained in only the resume and cover letter, the person s current job title had to be matched exactly, and many applications were not possible as the individual did not have the required minimal experience. 3.4 Callback monitoring Only calls and s requesting an interview were recorded. This is quite easy as each resume has its own address and an assigned virtual phone number. While each resume reports a postal address the address is entirely fictitious (although it appears realistic) and thus any contact via postal mail would be missed. Bertrand and Mullainathan were concerned about this and contacted several human resources managers who suggested this method of interview request was extremely rare. Given that Bertrand and Mullainathan s experiment was undertaken more than 12 years ago we can be confident that the potential for bias introduced by requests for interview via postal mail can be ignored. 17

18 4 Estimation and Data Overview 4.1 Estimation The study s design originally intended to send each of the 32 resumes to a total of 100 jobs. Sixteen of those would convey that the applicant has an online degree and the other sixteen would convey a traditional face-to-face college education. As the assignment to an online degree is done at random, the estimate of δ in an estimation of the following form would provide causal estimates of the difference in callback probability between applicants who have online versus traditional degree programs: y i,k = βx i + δd i + ɛ i In the estimation, y i,k takes on the value of 1 if firm k calls the applicant for interview. This binary outcome is predicted by person-specific characteristics X i and a dummy D i to represent the result of the randomization. In this paper X i includes GPA, years of relevant experience, a measure of college selectivity, gender, and a binary indicator for the industry the person is in (business, engineering, or nursing). The dummy D i takes on the value of 1 if the randomization selects that individual as having an online degree. A negative estimate for ˆδ would suggest the likelihood of getting a callback is reduced for online degree holders, even after accounting for other factors. Such an empirical approach would not be feasible using labor market survey data due to concerns about endogeneity and omitted variable bias. These concerns cannot be driving the results seen later in this paper as the randomization of D i sidesteps that problem by construction. The approach in this paper is subtly different to the matched-pairs approach of Bertrand and Mullainathan and others. However, it is similar to the Kroft et al. approach in the sense that they use unique resumes which are then assigned a randomized unemployment duration. Four resumes are created, using simple rules for their research assistants to follow, for each MSA-job pair. The actual contents of each resume are drawn from a pool of over 1,200 real resumes. There is the potential that an identical resume was created by the same or different research assistants and sent to more than one job but the authors do not track this. Instead, they have their assistants record the objective facts of the resumes and note the 18

19 duration of unemployment it was assigned. Then, the assistant moves on to the next MSA-job pair, creating another four unique resumes. This labor intensive approach provides rich data but is not feasible for most researchers. 11 In contrast, the matched-pairs approach is to create two (or more) versions of each resume and then examine the difference in callback rates as a function of the varied characteristic. Such an approach completely avoids concerns that results could be driven by systematic differences between the resumes which are separated into groups by randomization. For large enough samples true randomization ensures the estimated ˆδ would be the same but the empirical interpretation is different in a minor way. This paper s set up allows ˆδ to be interpreted as the difference in the mean callback rate between the group of people randomly assigned to have an online degree rather than a traditional degree. Formally, this means if the group of people assigned to online is group O and those assigned to traditional education are group T then ˆδ = y i O y j T Where y i O = E i O [ŷ Di =1] and y j T = E j T [ŷ Dj =0] and i = j. This approach computes the mean of all callback rates, conditional on other characteristics, of all the members of each group. The approach allows for the possibility that differences between the groups could drive the effects if the randomization fails in some way. If the study was set up as Bertrand and Mullainathan, ˆδ would instead be seen as the average of each difference in callback likelihood for each individual as they switch from an online to a traditional degree. ˆδ = E i I [ŷ Di =1 ŷ Di =0] This set up essentially computes two predicted callback rates for each individual as a function of the varied characteristic and then the estimated coefficient represents the average difference across individuals. The two approaches are closely related but will only be empirically identical if the randomization is perfect, leaving all covariates completely orthogonal to the randomization, which is only possible asymptotically. Ultimately, the benefits of the matched pairs approach are clear. First, it is not 11 Kroft et al. thank a total of 14 research assistants. 19

20 subject to any concerns about the randomization. Secondly, the matched pairs approach significantly economizes on researcher effort. This is because instead of creating N resumes, associated addresses, phone numbers, contact details, and cover letters, and then randomizing across them, the researcher can create an equivalent sample size by merely creating N/M resumes and having M versions of each resume, where M = 2 is typical. The only downsides of the matched-pairs approach is that caution must be taken to never send both versions of the resume to the same employer. Mainly this is to avoid raising suspicion and undermining the outcome of the study. In addition, sending multiple different resumes to the same employer creates the potential for equilibrium effects with one of the submitted resumes crowding out another, potentially in a biased manner unless care is taken. The administrative and clerical burden with these studies is significant for the researcher and having to check each application has not been sent before would add further steps, and the potential for bias-inducing error, into the process. 12 The study s current set up was chosen as it would still allow for the study to use a matched-pairs design if the pilot phase dictated it. However, the opposite approach - switching from a matched pairs design to the randomization approach - would require some data to be thrown out. The author initially thought that the administrative burden and potential errors associated with managing multiple versions of the same resume exceeded the cost of preparing N rather than N/2 resumes and identities. This turns out not to be the case. The marginal cost of adding or removing the word online and sending more applications - while being careful not to send the same resume to the same employer twice - is much smaller than creating a unique new resume, address, cover letter, and phone number. That now seems obvious and illustrates the value of flexible research designs and pilot phases. 4.2 Description of the Pilot Phase Data While a bank of 32 unique resumes was created, the pilot phase uses just 15 of these. The pilot phase also had a hard ceiling of 50 jobs per resume. As detailed 12 Even if dates are restricted when searching for available openings, advertisements are often re-posted a few days later. 20

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